Bocal

• abstract: A bocal is a curved, tapered tube, which is an integral part of certain woodwind instruments, including double reed instruments such as the bassoon, contrabassoon, English horn, and oboe d'amore, as well as the larger recorders. In the double reed instruments, the bocal connects the reed to the rest of the instrument; in the case of larger recorders, the bocal directs air from the player's mouth to the fipple.

以上来源于: WordNet